A not-so-well-known regulatory agency may have taken the first steps towards dismantling not only Richmond’s oil refinery, but also all other petroleum plants in the region, according to some environmental groups.

The Bay Area Air Quality Management District—often referred to as the Air District—passed a resolution last week to significantly reduce greenhouse gas emissions by 2050. To meet the goal, Chevron’s century old refinery in Richmond would need to drastically cut the amount of greenhouse gasses it releases.

“This is one piece of the puzzle towards a just, peaceful, and healthy future for all Bay Area residents,” said Jessica Dervin-Ackerman, a spokesperson for the Sierra Club, an environmental group that worked closely with the agency on the resolution. “Basically what this would do is it would prohibit refining fossil fuels in the Bay Area,” she said.